I spent about 20 hours building a plug for afiberglass glove box replacement for the boat over the last few weeks/ Built from fiberboard, then filler, then paint, then buff, then wax. Finally got to lay the fiberglass yesterday.

Question from leftfield - I'm in the process of getting all the rust out of my tank, and right now I have 2 gallons of Metal Rescue and rust slurry in there. I can drain it out but the thing'll need a good rinse out. Can I rinse it out with water if I pour in a bunch of WD40 once its dry to prevent it rusting again?